Separable water back or heater for stoves



(No Model.)

0. W. PURPLE. V SBPARABLE WATER BACK 0R HEATER FOR STOVBS.

No. 474,459. Patented May 10, 1892.

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UNITED STATES PATENT OFFICE.

CHARLES \V. PURPLE, OF MINNEAPOLIS, MINNESOTA.

SEPARABLE WATER BACK OR HEATER'FOR STOVES.

SPECIFICATION forming part of Letters Patent No. 474,459, dated May 10,1892.

' Application filed March 20, 1891. Serial No. 385,738. (No model.)

To aZZ whom it may concern.-

Be it known that I, CHARLES WV. PURPLE,

of Minneapolis, in the county of Hennepin and State of Minnesota, haveinvented certain Improvementsin Separable VVaterBacks or Heaters forStoves, of which the following is a specification.

My invention relates to a water heater or drum movably connected withthe stationary boiler-tank or hot-water reservoir and adapted to bemoved into position to be heated by the fire in the stove or to be movedaway therefrom at pleasure.

The object of the invention is to provide a water back or heaterinpermanent connection with the city water-supply and at the same timemechanically removable with respect to the stove.

To this end the invention consists in the combinations and constructionshereinafter described,and particularly pointed out in the claims.

My invention will be more readily understood by reference to theaccompanying drawings, in which- I Figure l is a general viewillustrating a device embodying my invention in use with a common formof gas-stove. Fig. 2 is an enlarged View of the apparatus removed fromthe reservoir. Fig. 3 is a sectional elevation of the water-heaterproper.

As shown in the drawings, the pipes 2 and 3 are the usual iron tapsextending from the side and bottom of the boiler. To these taps aresecured the swivel or swinging joints 4 and 5, adapted to allow movementin lateral or vertical directions, or both. The pipes 6 and 7 arescrewed tightly into the thimbles 8 of the joints 4 and 5 and extendoutwardly to the water back or drum 9, adapted to be moved over or inproximity to the heatingstove. As shown, the pipe 7 extends into thelower part of the drum 9, while the pipe 6 extends therefrom at itsupper portion. I preferably provide the neck 10, cored out and turnedback, so as to admit of the pipe 6 being screwed directly into it,instead of making it necessary to bend the pipe 6, as shown in Fig. 1.The lower portion of the water drum or back 9 is provided on both itsunder and interior surfaces 11 and 12, respectively, with spikes orcorrugations extending therefrom, as shown in the drawings, and greatlyincreasing the heating and radiating surfaces. This drum is preferablyof a circular form and may consist of a simple hollow box having inletand outlet sleeves or thimbles 14 and 15, into which the pipes 7 and 6pass.

In order to insure the heating of the water entering through the pipe 7and passing over the radiating-surface 12, I may provide the diaphragms16 and 17, having openings 18 and 19 oppositely placed and respectivelyopposite to the inlet and outlet openings in the lower and upper part ofthe drum. The water is thus compelled to flow clear across the bottom ofthe drumwhen it is returned upon itself in the chamber between thediaphragm and discharged through the opening 19 into the upper chamberof the drum, from whence the hot water rises through the pipes 6 andenters the hot-water tank 20. It will be seen that the water-back issupported on the pipes 6 and 7 as brackets and that being hinged to theboiler it may be easily swung away from the top of the stove just as agate would be swung 011 its hinges. Hence when it is desired to have hotwater throughout the pipes in the house the water-back is swung over thefire or flame of the cooking-range or gas-stove, while if no hot wateris needed or it is wished to move the stove the water-back is swung toone side out of the way.

In order to adapt a device to use with varying sizes of stoves, I mayuse universal or ball-bearing joints between the taps and the pipes 6and 7 in connection with movable joints at the heating-drum 9 and, ifdesired, in either or both of the pipes 6 and 7, thereby adapting thedrum to a vertical movement and to set down closely over the stove.

A special advantage of my device lies in its use in tenement houses,where the occupants are continually changing, as my separable water-backdoes away with the necessity of employing a plumber to connect ordisconnect the boiler-tank with the water back or front, permanentlysecured in the ordinary stove.

It is obvious that the invention admits of various modifications whichwould readily suggest themselves to one skilled in the art; and Itherefore do not confine myself to the specific construction shown anddescribed.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. The combination, in a device of the classdescribed, of the water back or drum, with the boiler-tank or reservoirpipes leading therefrom at points one above the other and to said drumand swivel-joints in said pipes at points near said tank, whereby saiddrum is adapted to swing laterally with said pipes as supports,substantially as described.

2. The combination, in a device of the class described, of a drum havingits lower wall or bottom corrugated orspiked on both sides, inlet andoutlet ports provided in the lower and upper portions of its Walls, andjointed pipe connections therewith, whereby said drum is made movablewith respect to its reservoir, substantially as described.

3. The combination, in a water-back, of the circular drum having thecorrugated 0r spiked bottom, with inlet and outlet openings in the Wallsof said drum, and the diaphragms 16 and 17, provided with openings 18and 19, substantially as described.

In testimony whereof I have hereunto set my hand this 17th day ofJanuary, 1891.

CHARLES PURPLE.

In presence ofl C. E. VAN DonEN, O. G. HAWLEY.

